High-Performance Flexible Ferrite Wave Absorbing Material for EMI &
RF Suppression Applications
Our Flexible Ferrite Wave Absorbing Material is a thin, flexible, high-performance EMI shielding sheet designed for suppression of electromagnetic interference (EMI) and
radio frequency interference , while also providing thermal
management functionality.The product portfolio includes multiple
series such as XB series (broadband absorption), HB series (1 GHz–40 GHz high-frequency absorption), thermally conductive absorbing materials, nanomaterials, and NFC
ferrite sheets. These materials are widely used in smartphones, POS
terminals, RFID readers, wireless chargers, laptops, routers, and
communication equipment.The absorbing material works by utilizing
high magnetic permeability to convert high-frequency
electromagnetic noise into thermal energy, effectively dissipating
it as heat. This significantly reduces electromagnetic
interference, improves antenna directionality, and enhances radar
direction-finding accuracy.
Features
- Broadband suppression – XB Series: 10MHz–6GHz; HB Series: 1GHz–40GHz
- Thin & flexible – Thickness from 0.08mm to 3.0mm
- High magnetic permeability – Effective high-frequency noise absorption
- Thermal conductivity – 2.0 W/m·k (thermally conductive series)
- Weather-resistant – Suitable for outdoor, humid, and salt-spray environments
- Easy installation – Self-adhesive backing, custom die-cutting available
Applications
- Smartphones & POS Devices – EMI suppression, signal improvement
- RFID/NFC Systems – Anti-metal interference reading optimization
- Wireless Chargers – Magnetic isolation and noise suppression
- WiFi & Antenna Systems – Improved directionality, reduced interference
- Laptops & Routers – High-frequency noise suppression
- Radar & Microwave Systems – Improved accuracy and direction finding
- Optical & RF Power Systems – Integrated thermal and EMI control
FAQ
Q: What is the working principle of absorbing materials?
A: Absorbing materials utilize high magnetic permeability to convert
high-frequency electromagnetic waves into thermal energy, thereby
dissipating the energy and suppressing electromagnetic interference
(EMI) and radio frequency interference (RFI). This improves overall
electromagnetic compatibility (EMC) of electronic systems.
Q: What is the difference between XB and HB series?
A: XB Series: General-purpose broadband absorbing materials for wide-frequency
EMI suppression applications.
HB Series: High-frequency absorbing materials designed for 1 GHz–40 GHz
operation, using rubber-filled absorbers with excellent weather
resistance, suitable for harsh environments such as outdoor, humid,
and salt-spray conditions.
Q: What is special about thermally conductive absorbing materials?
A: Thermally conductive absorbing materials combine EMI absorption
with a thermal conductivity of 2.0 W/m·K, enabling efficient heat dissipation. They are suitable for ICs,
CPUs, MOSFETs, and other heat-generating components, addressing
both thermal management and EMI suppression simultaneously.
Q: What is the main application of NFC ferrite sheets?
A: NFC ferrite sheets (13.56 MHz) are mainly used for RFID/NFC anti-metal interference. They modify magnetic flux paths to prevent metal interference
with NFC antennas and are also widely used for wireless charging
magnetic isolation applications.
